Ventilation window-lock.



Patented Oct. 23, 1917.

HFTE- nunoarn winning, or' iarnweuxnn, Wisconsin, e

vnivriizarioiv WINDOW-1100K.

1,244,393, 5 i I Specification biLettersrl Eatent.

, latentedOct. as, 1917;.

' ApplicationfiledJamlary Z 19 15. SeriaPNo. 1,056?

To all 110700772, it may concern i V Bexit known that Rnoonen G Y/Vrvrnn, a citizen of the United States of America, res siding at Milwaukee, in the county. of Milwaukee and State'of Wisconsin, has invented a certain new and useful Improvement in Ventilation Vfindow-Locl-:s,-of which the following is a specification.

This invention relatesto ventilation window locks. f

The object of the invention is to afford a ventilation opening or" openings by means of a plural sash window, and at the same time secure the sashes firmly together to prevent tampering from the outside. A more specific object of the invention is to pro vide such a lock of form simple to apply and without defacing or cutting the sash in any way. Another more specific object of the invention is to provide such a lock which will always have its two portions in proper position laterally for engagement, the degree of opening having been adjusted. These and other objects will be clear from a stud of the following description and appende claims.

One embodiment of the invention is illustrated in the accompanying drawing, in which the same reference characters denote the same or similar parts.

In the drawing, Figure 1 is a front view of portions of the upper and the lower sashes of a window to which the invention is applied; Fig. 2 is a sectional view of the sashes and lock, taken on line 11-11 of Fig. 1; and Fig. 3 is a plan view of that portion of the lock which is applicable to the lower sash.

In the drawing, the lower right hand inner portion 1 of the upper sash of a window has attached thereto by means of screws 5, 6, a strip 3, of metal formed with transverse recesses 4, 4. These may preferably be formed by corrugating the strip 3. The lower end of strip 3 is so formed as to make up with the lower ledge of the upper sash portion 1, atransverse recess like those formed by corrugating the strip 3.

The upper right hand inner portion 2 of the lower sash of the window has attached thereto a metal plate 8 by means of screws 9. The plate 8 has a rectangular recess formed therein of which the side toward the room is formed with a notch 10. The plate 8 is arched over along a center line at right anglesto the window to accommodate the reception of a bolt 7 looped to a Ushape intermediate its ends. When in;

place, the loop of the bolt 7 is just wide enough overall to easily fit between the inner ends'of the arches of plate 8, if it is desired to place it in that position, see Fig. 3. The notch 10 is ot'size suflicient to. fit

the boltwhen retracted thus holding same 1 toindicatethat it is retracted and the sash free to be adjusted. The forward end of the -sition1 The plate 8 is fastened in such positi on that the center line of the ends of bolt 7 intersects the center line of the strip 3. The diameter of the bolt fits the recesses t and also the recess at the lower end of the strip.

In operation, when the window is closed the bolt 7 may be projected into the recess at the lower end of strip 3 to lock the window in that position. The loop of the bolt is swung over to one side or the other to hold the bolt in place. Other ventilating positions may be given the window in the same way by first adjusting the window to the proper height of sash opening. To unlock the window the bolt 7 is swung with its loop in vertical position and then retracted into the notch 10.

It is claimed and desired to secure by Letters Patent.

1. In a lock for windows, the combination of a transversely recessed strip attached to the upper sash with its length extending in the direction of sliding of the sash, a plate attached to the top of the lower sash, and a bolt secured by said plate to slide at right angles to said strip and registrable with the recesses therein, said bolt having a lateral manually operable extension and said plate having on opposite sides of said bolt a formation closely accommodating said extension whereby said bolt may be oscillated to either side when in projected position to positively lock same in such position, and said plate on either side providing a stop for said extension whereby said extension will lie in easily accessible angular positions 2. In a lock for windows, the combination of a transversely recessed strip attached to the upper sash with its length extending in the direction of sliding of the sash, a plate attached to the top of the lower sash, and a bolt secured by said plate to slide at right angles to said strip and registrable with the recesses therein, said bolt having a lateral manually operable extension and said plate having an opening therethrough and having opposite portions thereof formed with alined arches to secure said bolt, said extension projecting through the a position,and said arch remotefrom the upper sash having at its top portion a notch whereby when said extension is in vertical position there is play between same and said edge Walls and said bolt may be retracts ed, and held in indicating position.

3. As an article of manufacture, a Window lock comprised of a recessed strip adapted to be fastened to the upper sash of a WindoW, a plate adapted to be fastened to the menses plate in place and said extension laterally swingable in eitherdireotion to closely fit Within said oblong opening When said bolt is extended into a strip recess to hold same in extended'position and entering'said notch When said bolt is retracted.

In testimony whereof, the signature of the inventor is affixed hereto in the presence of two Witnesses.

l RUDOLPH G WINTER. Witnesses:

G. F. DE lVEIN, V Enron W. BEHRnNs.

Copies of this patent mav be obtained for five cents each, by addressing the Commissioner of Eatents, Washington, D. J. 

